The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2000
Filed:
May. 03, 1996
Applicant:
Inventors:
Robert J Scott, Sugarland, TX (US);
Robert P Herrmann, Houston, TX (US);
Donald R Ray, Houston, TX (US);
Assignee:
Transocean Offshore Inc., , US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; B63B / ;
U.S. Cl.
CPC ...
175-7 ; 4051951 ;
Abstract
A multi-activity driliship, or the like, method and apparatus having a single derrick and multiple tubular activity stations within the derrick wherein primary drilling activity may be conducted from the derrick and simultaneously auxiliary drilling activity may be conducted from the same derrick to reduce the length of the primary drilling activity critical path.